I don’t know, my concept is there is some sort of psychic energy wavelength which may resonate certain things out with other people, and pheromones are a chemical basis of artificially simulating that resonance to some extent, but it’s never going to be as good as the same thing.
For example, you are at a different energy level once you are engaging a girl, or a girl is fixing attention on you through space (i.e. thinking about you), you may be aware there is some thought being directed at you.
Or, if you are engaging a girl, then because you are at another mental wavelength, then the reality is affected or something like that, sort of like in secret.